Question

A variety of trigonometric functions are shown in the answer choices below.

Which trigonometric function has an inverse over the domain x2≤x≤3x2


A-f(x)=cos(x−1/2)+3/2

B-f(x)=cos(x+π/2)

C-f(x)=sin(x−1/2)+3/2

D-f(x)=sin(x+π/2)

Answer 1

Not 100 hundred percent sure but I believe the answer is c